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BrainScope Research Tool Shows Concussion Effects Linger

August 10th, 2010 Nicholas Genes Sports Medicine

It’s an August tradition: Football training camps open, and we’re treated to warnings about working out in the heat.

In the past few years, however, when it comes to football, there’s been a new emphasis on traumatic brain injury — TBI. This has caught our eyes here at Medgadget.

We’ve covered innovative impact-sensing helmet technology before (as well as smart helmets for temperature monitoring).

But for the athlete with a concussion, what happens off the field? Unless a neurologist is involved, it’s up to the players and trainers to follow guidelines or make guesses about when to return to play.

Hopefully that will change, and a device like BrainScope will lead the way. When we first covered BrainScope, they were positioning their new device, based on controversial technology, as a sideline decision-making aide. Now their research seems to be focused on the weeks and months post-concussion:

Electroencephalograph (EEG) is a decades-old technology that measures electrical activity in the brain from the surface of the scalp. But using it to study mild traumatic brain injury has been a challenge, in part because the technology is highly susceptible to noise, such as head movements, and it must be performed by a trained expert.

Recently companies have developed more robust, portable devices, thanks to new sensors and advances in the algorithms used to process the data they collect. Such devices also require less training for those who use them. BrainScope, a startup based in Bethesda, MD, has developed one such device, which it is testing for athletic and military applications.

In the new study, McCrea and collaborators used the BrainScope device to analyze brain activity in nearly 400 football players at the start of the season to determine baseline brain activity. Twenty-eight of those players sustained a concussion during the study period. These players had their brain activity measured again right after the incident, as well as days later. Scientists also gave the players tests currently used to assess concussion, including tests of cognitive function and balance. They then compared changes in brain activity in injured players to both noninjured players and nonathlete controls.

“It turned out that symptoms, cognitive function, and balance had all returned to normal within the first week after a concussion,” says McCrea. “But brain electrical activity remained abnormal at day eight.” Brain activity returned to normal a month and a half later, when the next measurement was taken.

BrainScope is still a research tool, and they need to work on better characterizing the post-concussive phase and comparing results to traditional neuro evaluations, but so far, this device seems to have potential.

More from BrainScope…

Hat Tip: MIT’s Technology Review…

Nicholas Genes

Nicholas Genes, MD, PhD, has been with Medgadget since almost the beginning. He's now Assistant Professor of Emergency Medicine at Mount Sinai, where in addition to patient care and teaching responsibilities, he studies EHR usability and physician uses of social media. Dr. Genes serves on the editorial boards of Emergency Physicians Monthly and Emergency Medicine Practice. More about Nick: http://nickgenes.com

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